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All results from a given calculation for C4H6 (Methylenecyclopropane)

using model chemistry: BLYP/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/6-311G**
 hartrees
Energy at 0K-155.919967
Energy at 298.15K-155.925591
Nuclear repulsion energy108.587067
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at BLYP/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3041 3029 17.12      
2 A1 3020 3008 18.86      
3 A1 1765 1758 6.72      
4 A1 1444 1438 0.08      
5 A1 1408 1403 0.38      
6 A1 1022 1018 3.84      
7 A1 995 991 4.12      
8 A1 708 705 4.12      
9 A2 3086 3074 0.00      
10 A2 1130 1125 0.00      
11 A2 933 929 0.00      
12 A2 600 598 0.00      
13 B1 3099 3087 25.22      
14 B1 1063 1059 1.30      
15 B1 876 872 37.10      
16 B1 735 732 1.70      
17 B1 272 271 4.51      
18 B2 3116 3104 18.12      
19 B2 3020 3008 22.48      
20 B2 1413 1408 1.48      
21 B2 1105 1100 6.01      
22 B2 1029 1025 2.05      
23 B2 868 864 14.29      
24 B2 347 346 0.30      

Unscaled Zero Point Vibrational Energy (zpe) 18046.4 cm-1
Scaled (by 0.9961) Zero Point Vibrational Energy (zpe) 17976.0 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at BLYP/6-311G**
ABC
0.64048 0.22679 0.17958

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.646
C2 0.000 0.000 0.318
H3 0.000 0.932 2.216
H4 0.000 -0.932 2.216
C5 0.000 0.778 -0.937
C6 0.000 -0.778 -0.937
H7 0.917 1.286 -1.245
H8 -0.917 1.286 -1.245
H9 -0.917 -1.286 -1.245
H10 0.917 -1.286 -1.245

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10
C11.32781.09201.09202.69772.69773.29423.29423.29423.2942
C21.32782.11382.11381.47671.47672.22212.22212.22212.2221
H31.09202.11381.86343.15653.58643.59743.59744.21114.2111
H41.09202.11381.86343.58643.15654.21114.21113.59743.5974
C52.69771.47673.15653.58641.55531.09261.09262.27912.2791
C62.69771.47673.58643.15651.55532.27912.27911.09261.0926
H73.29422.22213.59744.21111.09262.27911.83393.15882.5720
H83.29422.22213.59744.21111.09262.27911.83392.57203.1588
H93.29422.22214.21113.59742.27911.09263.15882.57201.8339
H103.29422.22214.21113.59742.27911.09262.57203.15881.8339

picture of Methylenecyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 148.223 C1 C2 C6 148.223
C2 C1 H3 121.440 C2 C1 H4 121.440
C2 C5 C6 58.223 C2 C5 H7 118.971
C2 C5 H8 118.971 C2 C6 C5 58.223
C2 C6 H9 118.971 C2 C6 H10 118.971
H3 C1 H4 117.121 C5 C2 C6 63.554
C5 C6 H9 117.725 C5 C6 H10 117.725
C6 C5 H7 117.725 C6 C5 H8 117.725
H7 C5 H8 114.114 H9 C6 H10 114.114
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.208      
2 C -0.045      
3 H 0.095      
4 H 0.095      
5 C -0.213      
6 C -0.213      
7 H 0.122      
8 H 0.122      
9 H 0.122      
10 H 0.122      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.423 0.423
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.594 0.000 0.000
y 0.000 -24.716 0.000
z 0.000 0.000 -24.966
Traceless
 xyz
x -0.752 0.000 0.000
y 0.000 0.564 0.000
z 0.000 0.000 0.189
Polar
3z2-r20.377
x2-y2-0.877
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.644 0.000 0.000
y 0.000 6.474 0.000
z 0.000 0.000 9.088


<r2> (average value of r2) Å2
<r2> 78.063
(<r2>)1/2 8.835